Yo Flo. How's it going. Were you that dude last Sunday at Perris finishing out your dives? if so, congrats.
Hey, I partook in the Square 1 demo however here are my pros and cons from my experience:
Pros:
Awesome staff. Very knowledgeable. Can't ask for a better staff out at Square 1.
I get to try out different canopies before making a purchase.
On Site riggers.
They keep excellent records of the number of jumps you've had and the type of canopy.
You sound like a young buck so be aware that they will not let you progress to a smaller canopy until they feel you are ready. (Staff are always out watching the landings)
Cons:
Maintenance cost does not count toward the money you put down to start. For example, I put $2000 down and there's a $199 monthly maintenance fee that does not count to the $2000 I put down. So make sure your schedule allows you to jump at least 2 weekends a month if you went with a $2000 down/$199 monthly maintenance plan. (Note: Other plans exist just ask them).
Depending on what you want on the rig it can cost up to $8000. Square 1 will not (from what I was told) price match, say, ChutingStar.Com. I've seen complete tricked out rigs at ChutingStar cost $1500 - $2000 less compared to the same build as Square 1.

Welcome to Cali!
Perris is my home DZ.
It's best to give them a call or email them.
here's their site http://www.skydiveperris.com/
You can rent a rig for the weekend but it's first come first serve at Square 1.
Staff and people there are really cool!